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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2243442Generated: November 1, 2026

2-Aminothiazole → HCID 64318487, compound

https://huagongshe.com/reaction/2243442

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminothiazoleHCID 2155—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Amino-3-bromobenzoic acidHCID 238935—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Solvent1,2-DichloroethaneHCID 11—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 64318487HCID 64318487—

Reaction Conditions

Temperature60 °C

Reaction Steps

4-Amino-3-bromo-benzoic acid (18.5 mmol) was dissolved in DMF (10 mL) and 1,2-dichloroethane (80 mL). DIPEA (18.5 mmol), 1-(3-dimethylaminopropyl)-3-ethyl-carbodiimide hydrochloride (18.5 mmol), 1-hydroxybenzotriazole (18.5 mmol) and 2-aminothiazole (18.5 mmol) was added and the reaction mixture was stirred at 60° C. over night. The volume was reduced in vacuo, and water (60 mL) was added. The mixture was extracted with ethyl acetate, the organic phase was washed with NH4Cl (aq., sat.), dried over MgSO4, filtered and evaporated. The crude product was purified by flash chromatography on silica using gradient elution (heptane/ethyl acetate).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07674912B2
Source datasetuspto-grants-2010_03
ORD IDord-1c9af93e9e4640d5b0bdc0dd9107bcb8
Source noteuspto-grants-2010_03